Revert of Updates the IME list when the IME has refreshed.

ash/test/test_system_tray_delegate.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ash/test/test_system_tray_delegate.h"
 
 #include <string>
 
 #include "ash/common/login_status.h"
 #include "ash/common/session/session_state_delegate.h"
@@ skipping 49 matching lines @@
 }
 
 void TestSystemTrayDelegate::ClearSessionLengthLimit() {
   session_length_limit_set_ = false;
 }
 
 void TestSystemTrayDelegate::SetCurrentIME(const IMEInfo& info) {
   current_ime_ = info;
 }
 
-void TestSystemTrayDelegate::SetAvailableIMEList(const IMEInfoList& list) {
-  ime_list_ = list;
-}
-
 LoginStatus TestSystemTrayDelegate::GetUserLoginStatus() const {
   // Initial login status has been changed for testing.
   if (g_initial_status != LoginStatus::USER &&
       g_initial_status == login_status_) {
     return login_status_;
   }
 
   // At new user image screen manager->IsUserLoggedIn() would return true
   // but there's no browser session available yet so use SessionStarted().
   SessionStateDelegate* delegate = WmShell::Get()->GetSessionStateDelegate();
@@ skipping 55 matching lines @@
   return base::MakeUnique<TrayRotationLock>(tray);
 #else
   return nullptr;
 #endif
 }
 
 void TestSystemTrayDelegate::GetCurrentIME(IMEInfo* info) {
   *info = current_ime_;
 }
 
-void TestSystemTrayDelegate::GetAvailableIMEList(IMEInfoList* list) {
-  *list = ime_list_;
-}
-
 }  // namespace test
 }  // namespace ash